Transmission-gear.



No. 890,539. 4 PATENTED JAUNE 9, 190s.

E. W, Poms. TRANSMISSION GEAR. l APPLIOATION FILD JAN. 2, 1906.

2 SHEBTS-SHBBT l.

No. 890,589. PATENTED JUNE 9, 1908. E. W. POTTS. TRANSMISSION GEAR.APPLIoATIuN FILED mm2, 190e.

2 SHEETS-SHEET 2 ment is such to ei'ioii ve..

' meting' key.

ivi EL it je Miei i ii iis@ ELAH W. POTTS, OF DETRQI'T', MCHIGAN,ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENT-Q. F TWU-SXTEENTHS TO ALBERT W.WADSWORTH, OYILSSXTEENTH TO SAMUEL P. BRAD- No. S90

. i specification.

This invention 'rei imerovemeiii emily designe f. im; i A- mies miciconsiste 'iii u tion mi( eimngemeiit oi parte iieieiiieitv 'fuiiy' um?pointed out piiixiouimiy in the ceims.

The object ei' the invention to movimiee, tmnsmissiezi met. imieljii eisiiiiiie :mii inexpensive Vc(metfusti-oo. wiwi' iii@ :i'mig'epermit ofe. Change ilioin. one Seeed to er etiiei; te permit tile direction oi'imitation o the diiven shaft to ne readily 'rei lysed? to allow of theeert being driven dief Without training :my of the Wiieeis iiitzmsmissiim n eeieni The above obje( i tule iiiustieted. iii theeccompiiiyiufr inge, in wiiiei Figure l is a. iioiizoiitai sec-tionthro' geef and the transmission theieiii, the driving Shaft appeei tion.Fig. 2 is e tiensw le section on iilie 2--2 of Fig. l. Fig. en @nim-gediiegmeiitaiy View of :i portion oi: Ele Counter shaft, showing thespring-retreated ioeki g pin theeiii, thro-sigh the medium oi w 1f. ithe geef Wheels me ioeked to said shaft. sind pins being adapted to beoperated by im zie l 4 is ati'iiiisveee Section as on iie L of Fig. 5 ise simmer section als on line 5-5 of i.

Refeiiii' to the. @imm-eters of i'efeieme, 1 designates a gear cgi-se inwhich the treiismissien mechanism is eonned, said cese being dosed toetain therein the oil in which the gearingmns1 and having in the bottomthereof a depi seien 2 te eeeve the sedi;

Eet/entend Julie @1903 ment which .ping ceci: 3.

Passing 'through the oase and suitebiy euinziied tlieiein the drivingshaft L een neeted in the ueuii manner with the engine or motor, notehown. The reduced end 0i the shaft et is embraced by' sieeve 'withinwhich seid. Shaft is adapted. 'to .otetei iomited upon seideee've arethe pinions emi T and tile Whe 8 and 9, said geei's sind p'iiiioiiebeieg secured to seid sieee 'by the ite? 1G, e'iieeiiy eli. of geers endpineeuee turn with said sieeve. el' enifi portion of the may i eWithfiawzi though the wiso em'bizieed 'by ooee t non seid Sheri. me "iithe outer end o' if-finch, that To i. the Cee-e, i@ e Sprocket Wiieei torota their Vith, seid being Connected by' e suitsine with the erde oiithe veiiieie'.

' -1 the eieeve li withA u io wel' Wi'ieei 13 which is heid movement andafforded a i @Responding eilen e hui) ofsaid gee?, fougii iiemetfiealiwf, dosed by the ,er eind screws iet-o @peeing in screw piu ifontavt wm. Dalia.

Sini/1U The inner e ii of sleeve 5 is provided With dutch meiibers l5.piined on the Shaft 4 mijner-nt to 'the and of seid Sieeve is e. clutchooiiei eiuteii member edelpted t0 1 All 1; member et the en( of the iiiseeve maybe looked .i imi) oi geel' wheel 13 1s provide i e jew dutchmeiiibei 18. ipiined siemc il` adjacent to the hub oi.'

gear 'wh is i1 ciutvi'i miie? i?) adapted to engage t i e. iutii 'mimom: on 'the hub oi gear wheei if), wherein* seid gem Wheei may be ioekedto sain siem e il '1. Y

The clutch coiieis 17 and l) are actuated through the medium of :iTeciproeatory rod which passes through the end of the case and. (ferries'upon the inner' emi theeof the ieteriiij: preiectii'ig mme 'l'end '22.Arm 21 is Connected to clutch coiim .i9 by afork 23 mounted theieon (seedotted lilies in Fig. 5) which embreees the oeiiai 'i9 maiis pi'evded yshaft 4 is a counter shaft 28 ha ving a central 'bar 31, said pin lyingin opposed slots 35 inwith pins which lie in thc peripheral channel 24of said collar to ell'ect a shifting of said clutch collar in a mannerwell understood in the art. In like manner arm 22 is provided with afork 25 which embraces the collar 17 an d is provided with pins whichengage in the peripheral channel 16 of said collar. By this arrangementthe longitudinal movement of the rod 2O will shift the clutch collars 17and 19 in unison. Clutch collar 17 is also provided with clutch membersadapted to engage corresponding members 27 on the end of sleeve 11,whereby said sleeve may be locked to the shaft 4. s

Journaled in the case parallel with the aperture 29 extendinglongitudinally thereof in which is adapted to reciprocate a bar 31having u on the reduced inner end thereof a beveled rey 32. Embracingthe projecting end of shaft 28 is a collar 33 which is connected by atransverse pin 34 with the end of the op osite walls of said shaft.Embracing the co ar 33 is a yoke 36 having pins which engage in theperipheral channel 87 of said collar, said yoke being connected to anarm 38 adapted to be actuated by a reeiprocatory rod 39 to slidetheclutch and reciprocate the bar 31 within the shaft 28.

Keyed to shaft 28 within the case is a gear Wheel 40 which meshes withthe gear wheel 13 mounted on the sleeve 11. Loosely mounted upon theshaft 28 within the case,- are the gear wheels 41 and42 and the pinions43 and 44. Meshing with pinion 43 is an idle pinion 45 which in turnmeshes with pin'- ion 6 on sleeve 5. The gear wheels 41 and 42 on shaft28 mesh with pinion 7 and gear Wheel 28 respectively on said sleeve 5,while pinion 44 on shaft 28 meshes with gear wheel 9 on said sleeve.

Seated within the hollow shaft 28 and embraced by the hubs of the gearwheels 41 and 42 and the hubs of the pinions 43 and 44, are the lookingpins 46 which extend from the central o )ening through the Wall of saidshaft and Whic are confined in place by the screw lues 47 through whichsaid pins reciprocate.

ac of the ins is provided with a rounded head 48 and) embracing each pinbetween said head and .the plug 47, is a4 coiled s ring 49 whichnormally retracts said pin and iolds, its outer end Within the plane ofthe peripheryof the shaft 28. By a movement of the bar 31 longitudinallyof the shaft 28, the key 32 on the end of said arm may be caused toseparately engage the rounded heads 48 of the pins 46 and force saidpins outwardly, one at a time, so as to cause the buter end of' eachlcking pin to enter arecess 50 in the hub of the gear vwheel with whichsaid locking pin is associated, thereby locking the gear Wheel to shaft28 and causing said shaft to turn therewith.

It will be noted that as soon as the rounded head is moved past one ofthe pins in either direction, said pin is immediately retracted by itsspring 49, thereby permitting but one of the gears or pinion/S at atimeto be locked to sha-ft 28, and making it possible to lock to the shaftat any time, any one of said gears or pinions desired. Y

In the operation of this transmission mechanism, When it is desirable topropel the car directly, the clutch collars 17 and 19 aref moved to theposition shown in Fig. 1, wherein clutch collar 19 is disconnected fromthe hub of gear 13 and clutch collar 17 is connected with the end ofsleeve 11 thereby causing said sleeve to turn with shaft 4 and thesprocket Wheel 12 on said sleeve to turn in unison with said shaft, atwhich time all of the gear Wheels of the transmission mechanism remainidle, owing to the fact that sleeve .5 is disconnected from shafte andthat gear wheel 13 is looseupon sleeve 1. When it is desired to drivethe car indirectly, the clutch collars 17 and 19 are actuated so as tolock sleeve 5 to shaft 4 and gear wheel 13 to sleeve 11, at which timeall of the gears and pinions upon sleeve 5 will revolve, but shaft 28will remain idle, owing to the fact that the gears and pinions thereonmeshing with those on the sleeve 5, are loose upbn said shaft. To drivethe shaft 28 through any of the, gears or pinions mounted thereon, the

bar 31 is moved so as to cause the key 32 on the end thereof to engageand extend the pin of the gear wheel or pinion it is desired to place inservice, as shownl iii-'Fig 1, wherein said key'is shown as extendingthe locking pin 46 of the gear wheel 41, thereby locking said gear wheelto shaft 28, and causing a rota tion of said shaft through the pinion 7on sleeve 5. lThe rotation of shaft 28 causes the rotation of gear Wheel40, which meshing with gear Wheel 13 on sleeve 11, causes a rotation ofsaid sleeve when the gear Wheel 13 is locked thereto by the clutchcollar 19, thereby rotating the driving sprocket Wheel 12. By moving thebar 31 longitudinally of the shaft 28, gear wheel 41 or pinion 44 may bebrought into service by projecting the locking pins thereof in likemanner, thereby varying the speed of the car as desired. To drive thecar backward, the key 32 is'caused to engage and project the pin 46 ofthe pinion 43, which being driven through the pinion 6 and idlepinion45, will cause shaft 28 to turn in the opposite direction, therebyreversing the direction of rotation of the sleeve 11, as will be Wellunderstood.

It will now be evident that by bringing the -clutch collar 17 intoengagement with thix pendently of said shaft, gearing for driving saidgear wheel indirectly at variable speeds, comprising gear Wheelsrotatable in unison loosely mounted on the driving shaft, means forlocking said gear wheels to the driving shaft, and means for connectingthe driving gear wheel directly to the driving shaft to afford a directdrive and for disconnecting all of the gears of the mechanism from thediiving shaft.

2. In a transmission mechanism, the combination of the driving shaft, asleeve on the driving shaft a driving gear carried on said Sleeve, acounter shaft, a train of gears connecting the driving and countershafts, means for connecting the counter shaft with the sleeve'on thedriving shaft, and means for locking said sleeve directly to thedrivingshaft.

- 3. vIn a transmission mechanism, .the combination of the motor shaft,a loose sleeve thereon, a'driving gear on said sleeve, means for lockingthe sleeve to the driving shaft to eiect a direct drive, a second sleeveloose on the driving shaft gear wheelsixed thereon, a counter shaft, earwheels loose on the i counter shaft mes ing with the gear wheels onsaid' sleeve, means for locking the gear Wheels on the counter shaftindependently thereto, means connecting the driving and counter shaftsto reverse the rotation of the latter, a gear fixed on the countershaft, a gear normally loose on the sleeve carrying the driving gear,means for locking the loose gear on said sleeve thereto.

4. In a transmission mechanism, the combination of the motor shaft, asleeve rota-` table on said shaft, gear wheels upon said sleeve, acounter-shaft gear wheels loose thereon meshing with the gear Wheels onthe sleeve of the motor shaft, means for locking the -gear wheels on thecounter-shaft inde pendently thereto, a second Sleeve on the motor shafta driving wheel carried thereby, means connecting the counter-shaft withsaid last-mentioned sleeve for rotating it indirectly through the setsof gears, and means for connecting the sleeve carrying the driving wheeldirectly to the motor shaft.

5. In a transmission mechanism, the com` bination of the motor shaft, adriving Wheel mounted thereon and independently rotatable, lgearingmounted upon said shaft, means lor connectin said gearing indirectly tosaid Wheel to aord an indirect drive, means for connecting said wheel tothe Inotor shaft and disconnecting and rendering idle the indirectdriving gears.

6. In a transmission mechanism, the combination of the motor shaft, acounter-shaft, a sleeve loose upon the motor shaft gear wheels fixedthereto, gear Wheels loose upon the counter shaft meshing with the gearwheels on said sleeve, a second sleeve loose ulpon the motor shaft adriving wheel iixed t ereto, gears connecting said last-'mentionedsleeve with the counter-shaft, means for locking the loose gears on thecounter-shaft independently thereto, means for locking thefirst-mentioned sleeve to the motor shaft to afford an indirect drive,and means for locking the 1ast-mentioned sleeve to the motor shat tocause the driving wheel to turn therewit In testimony whereof, I signthis speci-- cation' in the presence of two Witnesses.

' ELIJAH w. Porre. Witnesses E. S; WHEELER, I. HowLnrr.

